Horseshoe-calk.



W. I. & J. MILLER.

HORSBSHOE OALK. APPLICATION nun JAN. s1, 1o12.

1 2 6,449. Patented May 14, 1912.

IN VE N TOR 5 m2] z'Z/er Jag e z'ZZer A ITORNEYS WILLIAM I. MILLER AND JESSE MILLER, RED WING, MINNESOTA.

HORSESI-IOE-CALK.

Specification of Letters Patent.

Patented May 14, 1912.

Application filed January 31, 1912. Serial No. 674,461.

To all whom it may concern:

Be it known that we, WVILLIAM I. MILLER and JESSE MILLER, both citizens of the Iilnited States, and residents of Red "Wing, in the county of Goodhue and State of Minnesota, have invented a new and Improved Horseshoe-Calk, of which the following is a full, clear, and exact description.

This invention relates to horseshoe calks and particularly to removable toe calks, and has for an object the arrangement of an improved structure which may be easily applied and removed, but which will normally remain rigidly in place.

Another object of the invention is the arrangement of an improved structure formed with a slot for accommodating a hard thin strip of metal designed to act as a sharp en gaging point or edge continuously, while the surrounding parts of the calk are worn away to a greater or less extent.

In carrying out these objects, a pair of similarly constructed members are provided, each formed with a threaded shank designed to be screwed into a threaded aperture in the horseshoe, and also formed with a beveled structure having a slot extending substantially entirely therethrough. The beveled portion of the call: is of substantially the usual contour of a calk, and a slot is formed therein longitudinally so that when two of the portions are arranged on or screwed to the toe of a horseshoe and a coinparatively thin steel or other hard metal is placed in the slot, a complete call: is provided which may be termed in a certain sense self sharpening as the hard metal will wear slower than the remaining part of the calk.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a perspective view of a horseshoe to which has been applied a calk embodying the invention; Fig. 2 is a side view of a complete calk, the same being shown on an enlarged scale; Fig. 3 is a bottom plan view of the structure shown in Fig. 2; Fi 4 is a perspective view of one of the retainlng portions of the calk; and Fig. 5 is a perspective View of a strip of hardened metal acting as the point or edge of the calk.

Referring to the accompanying drawings by numerals, 1 indicates a horseshoe of any preferred construction, provided with a pair of spaced threaded apertures at the toe portion for accommodating threaded studs or extensions 2 and 3 projecting from the retaining portions 4 and 5. The retaining portions 4 and 5 are formed with slots 6 and 7 designed to register when the device has been assembled as shown in Figs. 1, 2, and 3. The slots are shown as cut entirely through the portions 6 and 7 and also through the studs 2 and 3, but it will be evident that the slots could be made of any desired depth without departing from the spirit of the invention. From an examination of Figs. 2 and 3 it will be noted that the portions 4 and 5 do not meet or come together, whereby an opening 8 is provided. This opening suflicient to permit each of the portions 4 and 5 to be freely rotated until they have been screwed down tight. The slots 6 and 7 are designed to receive a strip of metal 9, preferably formed of some high grade tempered steel, while the portions 4 and 5 are made of somewhat inferior grade of metal which is softer than the strip or plate 9. This will permit the plate 9 to continuously project a short distance beyond the portions 4 and 5, as the same will wear slower than the portions 4 and 5, thus resulting in a self-sharpening toe calk. The portions 4 and 5 are formed with i'iotches 10 and 11 and the plate 9 is formed with a notch 12, these notches being designed to accommodate a key or other instrument for removing the plate 9 whenever desired. The plate 9 is held in position by friction of the portions 4 and 5, the slots 6 and 7 being made of such a size as to make a tight fit. This is ample securing means for the plate 9 as the tendency is more for the plate to move upward than it is to drop downward. Of course, if desired, other securing means could be provided without departing from the spirit of the invention.

Having thus described our invention, we claim as new and desire to secure by Letters Patent In a horseshoe calk, a pair of rotatable members threaded into the horseshoe, each of said rotatable members being formed with a slotted portion extending toward the opposite member whereby said slots form a terial being designed to wear slower than names to this specification in the presence of two subscrlbing witnesses.

WILLIAM I. MILLER. JESSE MILLER.

substantially continuous slot, and a hardened strip of material positioned in said continuous slot formed with a notch acting as a key receiving portion, said strip of mathe remaining parts of the calk whereby the Witnesses: calk will be substantially self sharpening. W. M. SWENEY, In testimony whereof we have signed our L. C. MEYER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

